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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 900 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Round 71.23 to one decimal place. =
  2. 2.Find the HCF of 49 and 63.
  3. 3.Find the LCM of 3, 4 and 9.
  4. 4.Round 81.26 to one decimal place. =
  5. 5.Round 31.73 to one decimal place. =
  6. 6.1/4 + 2/12 =
  7. 7.Find the LCM of 5, 8 and 2.
  8. 8.What is 150% of 230?
  9. 9.Find the LCM of 13, 6 and 3.
  10. 10.What is 6/7 of ₹70?
  11. 11.Meera scored 3 marks out of 50 in a test. What percentage did Meera score?
  12. 12.Find the HCF of 60 and 84.
  13. 13.What is 2/9 of 216 kg?
  14. 14.5% of a number is 28. What is the number?
  15. 15.What is the smallest number you must add to 935 so that it divides exactly by 7?
  16. 16.Three temple bells ring every 30, 24 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.19 − 16 ÷ 2 × 2 =
  18. 18.The ratio of boys to girls in a class is 5 : 3. There are 10 boys. How many girls are there?
  19. 19.1/4 + 8/12 =
  20. 20.Round 66340 to the nearest thousand.
  21. 21.(10 + 18) × 2 − 16 =
  22. 22.What is the smallest number you must add to 565 so that it divides exactly by 13?
  23. 23.1/5 of 20 + 2 × 4 =
  24. 24.32 + 9 × 2 − 28 =
  25. 25.3/5 of 15 + 7 × 4 =
  26. 26.7 : 3 = 49 : ?
  27. 27.Find the LCM of 35 and 45.
  28. 28.Two tanks hold 100 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.150% of a number is 864. What is the number?
  30. 30.3/7 of 28 + 5 × 3 =
  31. 31.A hall floor is 240 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  32. 32.What is 1/2 of 6 kg?
  33. 33.Divide ₹378 between Aarav and Arjun in the ratio 9 : 5. How much does Aarav get (in ₹)?
  34. 34.Tara scored 4 marks out of 20 in a test. What percentage did Tara score?
  35. 35.Which is closest to 599 × 38? (Round each number first.) (a) 240000 (b) 2400 (c) 48000 (d) 24000
  36. 36.If 8 kg of rice costs ₹256, how many kg can you buy for ₹480?
  37. 37.Find the HCF of 24 and 60.
  38. 38.6 : 5 = 12 : ?
  39. 39.What is 50% of 310?
  40. 40.Find the smallest number bigger than 8 that leaves a remainder of 3 when divided by 8, 6 or 4.

Answer key

  1. 71.2
  2. 7
  3. 36
  4. 81.3
  5. 31.7
  6. 5/12
  7. 40
  8. 345
  9. 78
  10. 60
  11. 6
  12. 12
  13. 48
  14. 560
  15. 3
  16. 120
  17. 3
  18. 6
  19. 11/12
  20. 66000
  21. 40
  22. 7
  23. 12
  24. 22
  25. 37
  26. 21
  27. 315
  28. 50
  29. 576
  30. 27
  31. 40
  32. 3
  33. 243
  34. 20
  35. 24000
  36. 15
  37. 12
  38. 10
  39. 155
  40. 27

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